Improvement in stencil-plates



JOHN MCCU LLAGH.

improvement in Stencil Plates.

Patented Aprl 2, 1872.

l Vay/ g( im MW/ E @E i@ PATENT OFFICE.

JOHN MCOULLAGH, OF NEW YORK, N. Y.

IMPROVEMENT IN STENClL-PLATES.

Specication forming part of Letters Patent No. 125,204, dated April 2,1872.

Specification describing a new and useful Improvement in Stencil-Plates,invented by J oHN McUULLAeH, of the city, county, and State of New York.

Figure'l is a top view of my improved stencil-plate, part being brokenawa-y to show the construction. Fig. 2 is a detail sectional view of thesame taken through the line, Fig. l. Fig. 3 is a detail ...sectionalview of the same taken through the line y y, Fig. l.

Similar letters of reference indicate corresponding parts.

My invention has for its object to furnish an improved stencil-plate,simple in construction and convenient in use, being so constructed thatthe letters or figures can be conveniently and quickly changed as may bedesired; and it consists in the construction and combination of thevarious parts of the plate, as hereinafter more fully described.

A is the bottom plate, in which are cut as many square holes as it isdesired to have letters or figures. Around the plate A, at such adistance from the edges of the holes through said plate as will leaveamargin wide enough to fully support the edges of the letter-plates B,is formed a rib, C. The letterplates B each contain a single letter orfigure, and they are laid side by side, as shown in Fig. l. Upon theinner side ofthe side ribs O are formed, orto them are attached, at theends of the division-bars between the letter holes, projections or stopsD, to prevent the lateral movements of the letter-plates B. The cornersof the letter-plates B are notched, as shown in Fig. l, to iit upon thestops D. E is the top plate of the device, which is hinged at one of itsside edges to the side edge of the bottom plateA. Thetop plateEisslotted longitudinally, the width ofsaid slot corresponding with thewidth of the holes inthe bottom plate A, and its length being equal tothe length of the series of holes in the said plate A. To the under sideof the plate E is attached, or upon it is formed, a rib, F, at such adist-ance from its edges that the said rib F will it within the rib Oand rest upon the edges of the letterplates B, locking them securely inplace. To the side ribs F at their lower inner edges, are attached, orupon them are formed, bars G, the lower surface of which is Hush withthe lower surface of the said ribs, and which are so placed as tooverlap and fit closely upon the adjacent edges of the letter-plates B.The ribs F, directly above the stops D, are notched or recessed, toreceive the said stops D. The two parts of the stencil-plate are locked,when shut down upon each other, by buttons H,

`which are pivoted to the lower plate and pass up through holes or slotsin the upper plate,

or the said plates may be locked together by other suitable fastenings.The end of `one of the plates A E may project beyond the end of theother plate, and may have a hole formed in it for convenience in hangingup the device. The two parts of the stencilplate may be struck up out ofsheet met-al, or they may be cast, as may be desired or convenient.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- An :improved stencil-plate, formed by the combinationof the two plates A O D and E F G with each other, substantially asherein shown and described, and for the purpose set forth.

JOHN MGOULLAGH.

Witnesses:

JAMES T. GRAHAM, T. B. Mosnnn.

